package com.blog.common;

import java.io.Serializable;

import com.fasterxml.jackson.annotation.JsonIgnore;
import com.fasterxml.jackson.annotation.JsonInclude;
import com.fasterxml.jackson.annotation.JsonInclude.Include;

@JsonInclude(Include.NON_NULL) //保证在序列化json的时候,如果是null的对象,key值也会消失
public class ServerResponse<T> implements Serializable{
	
	private int status;
	private String msg;
	private T data;
	
	public int getStatus(){
		return status;
	}
	
	public T getData(){
		return data;
	}
	
	public String getMsg(){
		return msg;
	}

	public void setStatus(int status) {
		this.status = status;
	}

	public void setMsg(String msg) {
		this.msg = msg;
	}

	public void setData(T data) {
		this.data = data;
	}
	
	
	private ServerResponse(int status){
		this.status = status;
	}
	
	private ServerResponse(int status, T data){
		
		this.status = status;
		this.data = data;
	}
	
	private ServerResponse(int status, String msg, T data){
		this.status = status;
		this.data = data;
		this.msg = msg;
	}
	
	private ServerResponse(int status, String msg){
		
		this.status = status;
		this.msg = msg;
	}
	
	@JsonIgnore  //使之不再json序列化结果当中
	public boolean isSuccess(){
		return this.status == ResponseCode.SUCCESS.getCode();
	}
	
	//正确响应
	public static <T> ServerResponse<T> createBySuccess(){
		return new ServerResponse<>(ResponseCode.SUCCESS.getCode());
	}
	
	public static <T> ServerResponse<T> createBySuccessMessage(String msg){
		return new ServerResponse<>(ResponseCode.SUCCESS.getCode(), msg);
	}
	
	public static <T> ServerResponse<T> createBySuccess(T data){
		return new ServerResponse<T>(ResponseCode.SUCCESS.getCode(), data);
	}
	
	public static <T> ServerResponse<T> createBySuccess(String msg, T data){
		return new ServerResponse<T>(ResponseCode.SUCCESS.getCode(), msg, data);
	}
	
	//错误响应
	public static <T> ServerResponse<T> createByError(){
		return new ServerResponse<>(ResponseCode.ERROR.getCode(),ResponseCode.ERROR.getDesc());
	}
	
	public static <T> ServerResponse<T> createByErrorMessage(String errorMessage){
		return new ServerResponse<>(ResponseCode.ERROR.getCode(),errorMessage);
	}
	
	public static <T> ServerResponse<T> createByErroerCodeMessage(int errorCode, String errorMessage){
		return new ServerResponse<>(errorCode,errorMessage);
	}
	
	
	public static void main(String[] args) {
		
		ServerResponse res = ServerResponse.createBySuccess("a");
		System.out.println(res.getData()+","+res.getStatus()+","+res.getMsg());
	}
	
	
}
